Plate Tectonics

3. fracture zone between two blocks of rock
5. the mind behind the sea floor spreading theory
9. the transfer of thermal energy through a liquid or gas: warmer substance rises and cooler substance falls
10. the mind behind the continental drift theory
11. two plates moving towards each other
13. the theory that Earth's outer shell is divided into large slaps of rock called plates
14. the theory that the continents are moving due to plate tectonics
15. iron was found in the oceanic crust which contributes to evidence of sea floor spreading

1. the layer of the earth where convection currents occur
2. plates that move away from each other
4. plates sliding past one another
6. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
7. an undersea mountain chain where new ocean floor is produced
8. the theory that the ocean is spreading due to plate tectonics
12. crust thin part of the Earth's crust which underlines the ocean basin